Stopper for spring-operated rollers



Aug. 2o, 1929. o, ALONDE i 1,725,285

STOPPER FOR SPRING OPERATED ROLLERS Filed Nov. 8, 1928 ATTOR EY PatentedAug. 20, 1929.

UNITED STATES PATENT OFFICE.

OSCAR LALONDE, OF ASTORIA, NEW YORK, ASSIGNOR 0F ONE-THIRD TO SAMUELHUTTER, OF NEW YORK, N. Y., AND ONE-THIRD T0 HARRY ODES, OF BROOKLYN,

NEW YORK.

STOPPER FOR SPRNG-OPERATED ROLLERS.

Application filed November 8, 1928. Serial No. 317,923.

This invention relates generally to spring operated rollers and has moreparticular reference to a stop for limiting the rotation thereof.

The invention has for an object the provision of a device of the classmentioned, which is of simple durable construction, desirable in use andeflicient in action, and which can be manufactured and sold at areasonable cost.

The invention is especially applicable to shade rollers for limiting theamount thru which a shade upon the roller may be moved. Quite often onedraws the shade down too far tearing it off of the roller or hurting thespring of the roller. With the instant arrangement the distance to whichthe shade may be moved is predetermined so that it is limited for motionwithin this distance for eliminating the possibility of hurting thespring ofthe roller or of tearing the shade off the roller. Furthermore,with this arrangement the shade may be arranged for merely operatingthru a half Way eX- tended position to a three quarter way eX- tendedposition or any other limited operation desired.

The device is readily adapted to other spring operated rollers such asthose found in toy vehicles. It is generally known that childrenoverwind these rollers breaking the springs and ruining the toy. Viththe instant arrangement, a roller may be limited for operation so thatthe spring cannot be overwound and damaged.

The invention proposes the use of an auxiliary tubular member adaptedfor en- I' gagement on the blank end of a roller and having a shuttleguide ridge extended longitudinally on its inner side for engagement bya lock lugr integral with a shuttle threadedly engaged on a threadedmember rotatively mounted within the tubular member. Stops are arrangedon this threaded member for limiting the motion of the said shuttle.

For further comprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawing7 and to the appended claims in which thevarious novel features of the invent-ion are more particularly setforth.

In the accompanying drawing forming a material part of this disclosure:

Fig. 1 is a side elevational view of a shade roller provided with astopper constructed according to this invention.

Fig. 2 is a longitudinal fragmentary vertical sectional view, taken onthe line 2-2 of Fig. l. Fig. 3 is a detail view of one end of Fig. 2.

Fig. 4 is an end elevational view seen looking in the direction of thearrows 4-4 of Fig. 1.

Fig. 5 is a fragmentary sectional view, taken on the line 5 5 of Fig. 1.

Fig. 6 is a. transverse sectional view taken on the line 6-6 of Fig. 2.

Fig. 7 is a transverse sectional view, taken on the line '7*7 of Fig. 2.

F ig. 8 is a. view similar to Fig. 2, but disclosing a modificationthereof.

Fig. 9 shows a shuttle for use in the device, constructed according tomodified form.

Fig. 10 is a sectional view, taken on the line 10-10 of Fig. 9, and

Fig. 11 is a sectional view similar to Fig. 3, but disclosinganother`modified form of the device.

The reference numeral 10 indicates generally a. shade roller of anydesign or construction having a spring end 11 and a. blank end 12. r1`hespring end of the shade roller is that end thru which the stem, such asstem 13 projects for connection with a stationary part, and connectedwith the internal spring of the roller. The inner end of the spring isconnected onto the roller.

An auxiliary tubular end 14 is forced onto the blank end 12 of theroller and held against rotation by a shuttle guide ridge 15 engaging ina groove 16 formed on the blank end of the roller l2.

A stationary end disc 16 is forced into the free end of the tubularmember and rests against end disc stop lugs 17 stamped out of thematerial of the tubular member. A threaded member 18 has an enlargedportion 19 rotatively mounted within the stationary end disc 16 and aflange 20 is integral with the enlarged portion 19 andl is disposed onthe outer side of the end disc 16. A rectangular lug 21 is integralwiththe flange 20 and is intended for engaging in some bracket that willhold it against rotation. The junction between the threaded member 18and the enlarged portion 20 produces shoulder 22 and a lock collar 23threadedly engages on the member 18. and abuts against this shoulder forrotatively Asupporting one end of the said threaded nut 27 abuts againstthis collar for holding it in various fixed positions along the lengthof member 18. This second collar is provided with a stop lug 28.

A-n internally threaded shuttle 29 engages upon the threaded member 18and is formed with a lock-lug 3() extending passed the sides oit' theshuttle. This loci; lug` engages against the shuttle guide ridge 15 sothat wher the threaded member 18 is held stationary and the rollerrotated, the shuttle moves along the threaded member. Upon continuedrotation the shuttle will reach the end or' the threaded member so thatthe lug 30 will engage against one of the stopping lugs of the collarsand loci; the roller against further rotation. The dot dash lines 31 inF ig. 3 indicate the shuttle on its eXtreme outer position with theshuttle lock lug 30 engaged against the stop lug 24 of the collar 23. Inthis condition of the device, the

roller may no longer be rotated for advanc ing the shuttle towards thecollar 23. But the roller may be rotated in the opposite direction foradvancing` the shuttle towards the colla-r 26 and upon reaching thecollar thev lock lug of the shuttle will act against the stop lug of thecollar and prevent further rotation of the roller in thecspecificdirection.

For changing the limit thru which the roller may be rotated it is onlynecessary to move the position of the second collar 26 and lock thiscollar in its new condition with the lock nut 27. Small adjustments maybe accomplished thru thewindow 26. It' it is desirable to produce largeradjustments the stationary end disc 16 vmay be drawn out of the tubularmember by drawing upon the j lug 21. After the adjustment has been madeit may be reengaged within the tubular l member'.

In `the modiiied form of the device illustrated in Fig. 8 the threadedmember 18 has been shown with a pluralitv of transverse threadedapertures 32 for receiving a stop screw 33 provided with a stop lug 34.This stop screw may be engaged in any one of the threaded apertures 32according to the limits thru which the roller is desired to operate. Inoperation of this form of the device, the stop lug 30 ot the shuttleacts against the stop lug 34 of the screw or against the stoplug 24 ofthe collar 23.

In Figs. 9 and 10 a modiiied form of a shuttle hasbeen illustrated inwhich a shuttle lug extension plate 35 provided with a slot 3.6 engagedby a set screw 37, rest-s upon the stop lug 30 ofthe shuttle. The setscrew 37 engages in the lug 30 for clamping the shuttle lug extensionplate in any extended position the limits thru which the roller may actwould be less than when the lock extension plate is in a retractedposition.

The modilied form of the device illustrated in Fig. 11 disclosesv astationary end disc 16 threadedly engaged on a threaded member 18aformed with a shoulder 22a against which the end disc clamps. The member18 is formed with a round projection 21L for engaging in a circularaperture formed in a roller shade supporting bracket not shown on t-hedrawing, a stop pin stop projects from the outer side of the disc 16 forengaging against the latter mentioned roller shade supporting bracketfor holding the latter disc stationary. The periphery of the disc 16t'orms a bearing for the tubular member 14 which rotates upon rotationof the roller upon which the device is attached. A stop lug 24 projectsfrom the inner tace of the disc 16 for engagement by a loclr lug of theshuttle of the device as indicated by dot dash lines 31. In operationthe disc 16 and threaded member 18a remain stationary while the tubularmember 14 vrotates and causes the shuttle to travel along the threadedmember.

.l/Vhile I have illustrated and described my invention with some degreeof kparticularity, I realize that in practice various alterationstherein may be made. I therefore reserve the right and privilege ofchanging the form of the details 01"' construction or otherwise alteringthe arrangement of the correlated parts without departing from thespirit or the scope of the appended claims.

Having thus described my invention, what I claim as new, and desire tosecure by United States Letters PatentV is 1. In combination with astopper for spring operated rollers having a stationary threaded membersupporting rotatively a tubular member with a shuttle guide ridge andiixedly supporting a stop lug, a shuttle internally threaded forengaging on the threaded member and formed with a lock lug for engagingthe shuttle guide ridge, and a lock lug extension plate for engaging thestop lug and adjustably mounted on the said lock lug.

2. In combination with `a stopper for springoperated rollers having astationary tlrfreaded memjber supporting ro-tatively a tubular memberwith a shuttle guide ridge and fixedly supporting a stop lug7 a shuttleinternally threaded for engaging on the threaded member and formed witha lock 5 lug for engaging the shuttle guide ridge, a lock lug extensionplate for engaging the stop lug and formed with a slot, and a screwextending thru the slot and threadedly engaged in the lock lug for adjustably holding the extension plate. I

Signed at New York in the county of New York and State of New York this30th day of October, 1928.

OSCAR LALONDE.

